Actually, MyMicrobes does sound like an interesting project, even if we have a visceral reaction to any new social network or even the phrase social network or really anything relating to social networks that doesn't star Justin Timberlake. Peer Bork, a biochemist at the European Molecular Biology Laboratory in Heidelberg, Germany, is behind MyMicrobes. It's expensive to start--it'll cost about $2,100 to get your gut bacteria sequenced, which involves mailing a fecal sample to Germany (seriously). That's expensive compared to, say, 23andMe, which is inclined to host crazy sales even despite the cheap entry fee. But apparently the gut bacteria is a much trickier genome to sequence than the human, with a few billion more lines of DNA to decipher.